The "tell everyone something interesting about yourself" bit

I'm at a work event (~150 people) and it's the second time I've been here recently. I know they are going to get everyone up to introduce themselves. Last time they requested we all day what we do, year experience, and an "interesting fact" about ourselves. Most people would say, I like to hunt, or I build cars on the weekend. I hate these things (the awkward intros) with a passion. So this time I'd like to go in with something to throw everyone off. Just a complete lie that is somewhat believable. Like "my grandfather invented floss". Something that will turn heads and people will be pretty sure I'm lying, but couldnt prove it. What's the OT got?